Optimal variable-specific-impulse trajectories in simple gravitational fields
Ponnapalli, Kaushik
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https://hdl.handle.net/2142/104920
Description
Title
Optimal variable-specific-impulse trajectories in simple gravitational fields
Author(s)
Ponnapalli, Kaushik
Issue Date
2019-04-24
Director of Research (if dissertation) or Advisor (if thesis)
Prussing, John E.
Department of Study
Aerospace Engineering
Discipline
Aerospace Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(s)
Astrodynamics, Optimal Trajectories
Trajectory Optimization
Abstract
Minimum-fuel trajectories in the Clohessy-Wiltshire orbital model are investigated. Low-thrust variable-specific-impulse propulsion is assumed. The necessary conditions for an optimal solution and the equations of motion are combined to produce a single equation. Every solution to this equation is an optimal trajectory. Boundary conditions for rendezvous and intercept trajectories are formulated and optimal solutions are obtained. Previous analytical solutions are examined and reconciled.
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